Running gear, axles, steering · Steering · Steering rack
Assembly overview: engine pump unit
Only 6R 2009–2014
- There is no provision for repairing the motor/pump unit.
- If problems are reported, determine the cause by means of a pressure test and a leakage test.
- Always check steering system for leaks if hydraulic fluid level in reservoir is low.
- In the event of any leaks near line connections, re-tighten connections and wipe dry.
- Do not re-use hydraulic fluid which has been drained off.
- Always renew seals.
- Quantity of fluid in system: approx. 0.8 l
- 1 Cap with dipstick
- Check hydraulic fluid level ⇒ 7.3 Checking hydraulic fluid level of power steering.
- 2 Seal
- 3 Oil container (reservoir)
- Renewing ⇒ 6 Motor/pump unit
- 4 Clip
- 3 Nm
- Allocation ⇒ Electronic parts catalogue “ETKA”
- 5 Seal
- Allocation ⇒ Electronic parts catalogue “ETKA”
- Renew after each removal
- 6 Motor/pump unit
- With power steering control unit - J500-
- Not designed to be repaired
- Only the fluid reservoir ⇒ Item 3 (6.1 Assembly overview: engine pump unit), clamp ⇒ Item 4 (6.1 Assembly overview: engine pump unit) and oil seal ⇒ Item 5 (6.1 Assembly overview: engine pump unit) can be renewed
- Removing and installing ⇒ 6.2 Removing and installing motor/pump unit
- Checking delivery pressure ⇒ 6.4 Checking delivery pressure of motor/pump unit
- 7 Mountings
- Specified torque: 7 Nm
- Check for damage, such as cracks in rubber, separation of metal plate from rubber, renew if necessary
- 8 Nut
- 7 Nm
- When tightening, counterhold at mounting ⇒ Item 7 (6.1 Assembly overview: engine pump unit)
- 9 Bolt
- 20 Nm and turn 90° further
- Renew after each removal
- 10 Bracket
- For motor/pump unit
- Various versions
- Allocation ⇒ Electronic parts catalogue “ETKA”
- 11 Pressure line
- 12 Union nut
- 30 Nm
- 13 Seal
- Renew after each removal
- 14 Spring-type clip
- 15 Return line